I trust that more blessings are coming my way

Trust is the wager here, and it isn't a small one. There's no evidence about what's coming, which is what makes it trust rather than knowledge.

Still — look backward. Good things have arrived that you couldn't have predicted from where you were standing a year earlier: a friendship, an opening, a piece of luck that only made sense afterward. Your record at forecasting your own life is worse than you think, in both directions.

That's the honest ground for optimism. Not certainty; just the observation that surprise runs both ways.

Hold it loosely. Loose is what lets it survive a bad month.